The Fascinating Story of the Scattergood-Olympic Underground Transmission Line

🔌Underground transmission lines are used to deliver electricity from power plants to substations.

⚡High voltage lines have reduced current, minimizing energy wasted from conductor resistance.

🧪High pressure, fluid-filled cables are used as insulators in underground transmission lines.

🌡️Pipe-type oil-filled cables have a large liquid heat sink to remove heat and increase power capacity.

🔧Repairing faults in underground transmission lines requires innovative techniques, such as freezing the oil with liquid nitrogen.

What is the purpose of high voltage transmission lines?

—High voltage transmission lines are used to deliver electricity from power plants to substations.

Why do high voltage lines use reduced current?

—Reduced current in high voltage lines minimizes energy wasted from conductor resistance.

What are pipe-type oil-filled cables?

—Pipe-type oil-filled cables are insulators used in underground transmission lines, filled with oil to remove heat and increase power capacity.

How are faults in underground transmission lines repaired?

—Innovative techniques, such as freezing the oil with liquid nitrogen, are used to repair faults in underground transmission lines.

When was the replacement project for the Scattergood-Olympic line completed?

—The replacement project for the Scattergood-Olympic line was completed in 2018.

00:00In 1989, a fault in an underground transmission line in Los Angeles led to a costly repair.

03:13High voltage lines use reduced current to minimize energy wasted from conductor resistance.

04:36Pipe-type oil-filled cables are used as insulators in underground transmission lines.

05:56Pipe-type oil-filled cables have a large liquid heat sink to increase power capacity.

09:36Innovative techniques, such as freezing the oil with liquid nitrogen, are used to repair faults.

10:43In 2018, a replacement project for the Scattergood-Olympic line was completed.